org.springframework.data.mongodb.core.convert

Interface ReferenceResolver

All Known Subinterfaces:

DbRefResolver

All Known Implementing Classes:

DefaultDbRefResolver, DefaultReferenceResolver, NoOpDbRefResolver

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface ReferenceResolver

The ReferenceResolver allows to load and convert linked entities.

Since:

3.3

Author:

Christoph Strobl

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	ReferenceResolver.MongoEntityReader Domain type conversion callback interface that allows to read the source object into a mapped object.
static class	ReferenceResolver.ReferenceCollection ReferenceResolver.ReferenceCollection is a value object that contains information about the target database and collection name of an association.

Method Summary

Modifier and Type	Method and Description
Object	resolveReference(MongoPersistentProperty property, Object source, ReferenceLookupDelegate referenceLookupDelegate, ReferenceResolver.MongoEntityReader entityReader) Resolve the association defined via the given property from a given source value.

Method Detail

resolveReference

@Nullable
Object resolveReference(MongoPersistentProperty property,
                                  Object source,
                                  ReferenceLookupDelegate referenceLookupDelegate,
                                  ReferenceResolver.MongoEntityReader entityReader)

Resolve the association defined via the given property from a given source value. May return a proxy instance in case of a lazy loading association. The resolved value is assignable to PersistentProperty.getType().

Parameters:

property - the association defining property.

source - the association source value.

referenceLookupDelegate - the lookup executing component.

entityReader - conversion function capable of constructing entities from raw source.

Returns:

can be null.